A decision must be ______immediately _______stop the factory ______waste water without being treated.

6． The teacher asked us to stop _________，but _________ the text．

About ________ of the workers in the factory were born in the ________.

Kevin is the only student in the class______________failed in the exam.

Many buildings in the city need repairing, but the one_______ first is the library.

30． Stop _________ a noise in the library． The students are reading．books．

12． About_______ of the workers in the factory were born in the __________．

According to the passage, the British Library ______.

________the rain stop, the sunflower would be saved.

In the past 50 years, there ______ a great increase in the amount of research ______ on the human brain.

A student can rent a locker in the library if he _____.

We cannot ignore the__________ of noise on people in the factories.